JPH11210198A - Universal joint of handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of part items by simplifying a structure and to reduce a man-hour for construction work by reducing the weight and cost of the structure. SOLUTION: A connecting medium 1, having a partial ball 2 formed at its end and provided with a pin 5 located in a position where a horizontal axis passing the center of the partial ball 2 and extending in a direction perpendicular to the central axis C of the connecting medium 1 passes the surface 2' of the partial ball, and a handrail connecting member having an edge 4' which makes sliding contact with the partial ball surface 2' of the connecting medium 1, are connected together in such a way as to be rotatable using the pin 5 as an axis. The edge 4' forms a curve by which a point P, shifted by an adjustment angle θ from a point (p) where a line passing the center of the partial ball 2 and extending in a direction perpendicular to the central axis C of the connecting medium 1 and the horizontal axis reaches the partial ball surface 2', and the pin receiving part 6 of the pin 5, are connected together along the partial ball surface 2'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint of a handrail, and more particularly to a universal handrail joint applied to a portion where the handrail is bent at an arbitrary angle.

[0002]

2. Description of the Related Art Handrails installed on stairs, corridors, and the like use connecting members corresponding to the angles at which the directions are changed at portions where the directions are changed.
Various materials and designs are prepared as long as they are angles generally used in construction such as 0 degrees and 120 degrees. However, in a place such as a staircase, a general inclination angle cannot be adopted due to architectural design restrictions, and a halfway angle must be adopted in many cases. In such a case, the connection of the bent part of the handrail is forced to employ a hand-made joint, which is very expensive.

As shown in FIG. 5, as a handrail joint employed in the above case, the handrail is bent in a substantially L-shape corresponding to the bending angle of the handrail, and both ends thereof are partially spherical.
In the partial spherical surface 50, the pins 51p are inserted in a direction perpendicular to the L-shaped plane and so as to pass through the spherical center.
And a rod 53 provided at one end with a bearing 51b fitted to the pin 51p at one end of the coupling medium 52, and a longitudinal end of a cylindrical body 54 having one end contacting the end face of the partial spherical surface 50. A partition 55 is provided in the middle of the direction, a through hole 56 is provided in the center of the partition 55, and the free end 57 of the rod 53 is inserted into the through hole 56 so as to be rotatably connected to the inner surface of the cylindrical body 54. Female screw 58
A disk provided with a member 69 provided with an inner ring 60 and a male screw 61 screwed into the female screw 58 provided on the outer periphery thereof, and a fool hole 63 through which a screw screw for receiving an end face of the handrail 62 is inserted is provided on the other side. A product comprising a handrail end attachment member 65 integrally provided with a handrail 64 is commercially available.

[0004]

The handrail universal joint according to the prior art has a complicated structure, a large number of parts, a high cost, a large weight and a long construction time.

In view of the above, it is an object of the present invention to provide a universal joint of a handrail which has a simplified structure, reduces the number of parts, reduces the weight and cost, and enables a reduction in man-hours during construction.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, according to the first aspect of the present invention, a partial sphere is formed at an end portion, and passes through the spherical center of the partial sphere in a direction perpendicular to the central axis of the coupling medium. A connecting medium having a horizontal spherical partial spherical line extending as a rotation axis;
A handrail connecting member having an edge slidingly contacting the partial spherical surface of the connection medium and being rotatably connected about the rotation axis as an axis, the edge passing through the center of the partial sphere and connecting medium A curve extending along the partial spherical surface between the point extending from the point at which the line extending in the direction perpendicular to the central axis and the horizontal axis reaches the partial spherical surface by the adjustment angle and the pin receiving portion of the pin is formed. This is a configuration employing the following configuration.

In the present invention configured as described above,
A handrail universal joint that has a simple structure, has a small number of parts, is lightweight, and can reduce the number of construction steps on site is obtained.

According to a second aspect of the present invention, the partial sphere is formed at both ends of a connecting medium having a bent portion, and the handrail connecting member is connected to the connecting medium by the above structure. .

In the present invention configured as described above,
With a simple structure, it is possible to fine-tune the connection angle, and to connect a large-bending handrail.

According to a third aspect of the present invention, a pin, a C-shaped (cross-section) pin, a rivet, and a screw screw are employed as the connecting means.

In the present invention configured as described above,
The connecting operation can be easily performed.

According to a fourth aspect of the present invention, the connecting means employs a pivot.

In the present invention configured as described above,
The connection between the connecting medium and the handrail connecting means can be pushed in by utilizing the elasticity of the connecting portion of the handrail connecting member.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. An end of the coupling medium 1 is formed into a partial sphere 2, and a pin hole 3 is formed on the surface of the partial sphere 2 on a horizontal axis passing through the center of the sphere 2 and perpendicular to the central axis C of the coupling medium 1. .

The entire edge 4 'of the railing connection member 4 abuts on the partial spherical surface 2' of the coupling medium 1;
The pin 5 is pivotally connected to a pin 5 inserted in the pin hole 3 (see FIG. 1).

The edge 4 'of the handrail connecting member 4 which abuts against the partial spherical surface 2' of the coupling medium 1 has a line passing through the center of the sphere and perpendicular to the central axis C of the coupling medium 1 and the horizontal axis. Is formed along the partial spherical surface 2 ′, connecting the point P, which is phased from the point p passing through by the adjustment angle θ, with the pin receiving portion 6 of the pin hole 3. (See FIG. 2) A handrail 8 is fitted into the opening 7 on the opposite side of the connection member 4 on which the curve is formed, and is fixed by a screw 9. Here, railing 8
The opening 7 into which is inserted is circular, but if the outer shape of the handrail changes, the shape of the opening 7 is adjusted according to the shape (see FIG. 3).

The connection medium 1 and the handrail connection member 4
Is manufactured by die casting, but can also be manufactured by plastic molding.

According to FIG. 1, the connecting medium 1 is bent into an L-shape, and both ends of the connecting medium 1 are made into partial spheres 2, and the handrail connecting member 4 is connected to the partial spheres 2.
The angle of bending into a character shape is appropriately selected according to the bending angle of the handrail. When the bending angle of the handrail is small, the handrail can be directly connected as an opening similarly to the handrail connecting member without forming a partial sphere on one side of the connection medium 1.

In the above embodiment, the connecting medium 1 and the handrail connecting member 4 are connected by inserting the pin 5 into the pin hole 3.
As shown in FIG. 4, a projection 10 is provided at the position of one of the C-shaped (cross-sectional) pins 5c, rivets 5b, the coupling medium 1, and the handrail connecting member 4 to be used. It may be a so-called pivot 5p into which the fitting 10 is inserted, or a screw (not shown) may be employed.

[0020]

As described above, according to the present invention, the structure is simplified, the number of parts is reduced, the weight and cost are reduced, and the number of man-hours during construction is reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment according to the present invention.

FIG. 2 is an explanatory view of the connection angle adjusting mechanism.

FIG. 3 is a diagram showing a state in which the handrail is connected.

FIG. 4 is an explanatory view of a connecting means between the connecting medium and the handrail connecting member.

FIG. 5 is a perspective view of a conventional handrail joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection medium 2 Partial sphere 2 'Partial sphere 3 Pin hole 4 Handrail connecting member 4' Handrail connecting member edge 5 Pin 5 'C-shaped pin 6 Pin receiving part 7 Opening 8 Handrail 9 Screw screw 10 Projection

Claims (4)

[Claims] 1. A connecting medium having a partial sphere formed at an end thereof, and having a horizontal axis passing through a spherical center of the partial sphere and extending in a direction perpendicular to a central axis of the connecting medium, and having a rotation axis as a rotation axis, A handrail connecting member having an edge slidingly contacting the partial spherical surface of the connection medium and being rotatably connected about the rotation axis as an axis, the edge passing through the center of the partial sphere and connecting medium A curve extending along the partial spherical surface between the point extending from the point at which the line extending in the direction perpendicular to the central axis and the horizontal axis reaches the partial spherical surface by the adjustment angle and the pin receiving portion of the pin is formed. Handrail universal joint. 2. The handrail free joint according to claim 1, wherein the partial spheres are formed at both ends of a connection medium having a bent portion, and the handrail connection member is connected to the connection medium in the above-described configuration. 3. The handrail universal joint according to claim 1, wherein the connecting means is a pin, a C-shaped (cross-sectional) pin, a rivet, or a screw. 4. The apparatus according to claim 1, wherein said connecting means is a pivot.
Or the handrail universal joint according to 2.